Search a number
-
+
1315010780 = 22565750539
BaseRepresentation
bin100111001100001…
…0111100011011100
310101122102110122222
41032120113203130
510143120321110
6334253124512
744405256446
oct11630274334
93348373588
101315010780
11615320076
12308489738
1317c5924b5
14c690b496
157a6a7c55
hex4e6178dc

1315010780 has 12 divisors (see below), whose sum is σ = 2761522680. Its totient is φ = 526004304.

The previous prime is 1315010777. The next prime is 1315010789. The reversal of 1315010780 is 870105131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315010789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32875250 + ... + 32875289.

It is an arithmetic number, because the mean of its divisors is an integer number (230126890).

Almost surely, 21315010780 is an apocalyptic number.

1315010780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315010780 is an abundant number, since it is smaller than the sum of its proper divisors (1446511900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315010780 is a wasteful number, since it uses less digits than its factorization.

1315010780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65750548 (or 65750546 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1315010780 is about 36263.0773652761. The cubic root of 1315010780 is about 1095.5774995631.

The spelling of 1315010780 in words is "one billion, three hundred fifteen million, ten thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 65750539 131501078 263002156 328752695 657505390 1315010780